Finding the Third Proportional to 18,502.17 and 43,318.55

Step by Step Solution

1. Step 1: Write the proportion equation
   18,502.17 : 43,318.55 = 43,318.55 : x
2. Step 2: Convert to fraction form
   18,502.17/43,318.55 = 43,318.55/x
3. Step 3: Cross multiply
   18,502.17x = 43,318.55 × 43,318.55
4. Step 4: Simplify right side
   18,502.17x = 1,876,496,503.36
5. Step 5: Solve for x
   x = 1,876,496,503.36/18,502.17
6. Step 6: Final answer
   x = 101,420.34